ARC: [SMP] TLB flush

- Add mm_cpumask setting (aggregating only, unlike some other arches)
  used to restrict the TLB flush cross-calling

- cross-calling versions of TLB flush routines (thanks to Noam)

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 7f0ab1ecd640..41bc4c703f42 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -128,6 +128,7 @@ void start_kernel_secondary(void)
         atomic_inc(&mm->mm_users);
         atomic_inc(&mm->mm_count);
         current->active_mm = mm;
+        cpumask_set_cpu(cpu, mm_cpumask(mm));
 
         notify_cpu_starting(cpu);
         set_cpu_online(cpu, true);